no. The 3D only works for video / image capture / playback. The UI is andriod not HTC, so the UI has to be compatible with a range of devices.. though we may see a 3D specific version of android if the technology takes off.

reasons why the main UI is not 3d are: would drain battery, would only be in 3d at certain angles, using your finger on the touch screen would distort the 3d effect. Thus the 3d is for taking pics and vids, playback and games